Erdős-primes: Difference between revisions
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(→{{header|Tiny BASIC}}: Simplified and corrected. K! is calculated from (K - 1)!, not from the beginning. Now, there are displayed all 25 Erdős primes smaller than 2500 (previously, only 22).) |
m (→{{header|Tiny BASIC}}: The variable E is not used. Removed line with E = ...) |
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Can't manage the stretch goal because integers are limited to signed 16 bit. |
Can't manage the stretch goal because integers are limited to signed 16 bit. |
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{{works with|TinyBasic}} |
{{works with|TinyBasic}} |
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Tiny BASICs other than Tom Pittman's TinyBasic use <code>,</code> instead of <code>;</code> for string concatenation in <code>PRINT</code>. |
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<syntaxhighlight lang="basic">10 REM Erdős-primes |
<syntaxhighlight lang="basic">10 REM Erdős-primes |
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20 LET P = 1 |
20 LET P = 1 |
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130 LET F = F * K |
130 LET F = F * K |
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140 LET Z = P - F |
140 LET Z = P - F |
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150 IF Z < 0 THEN GOTO |
150 IF Z < 0 THEN GOTO 190 |
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160 GOSUB 1000 |
160 GOSUB 1000 |
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170 IF A = 1 THEN |
170 IF A = 1 THEN GOTO 40 |
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180 |
180 GOTO 110 |
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190 |
190 LET C = C + 1 |
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200 |
200 IF P < 2500 THEN PRINT C; " "; P |
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210 IF P |
210 IF P > 2500 THEN END |
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220 IF P > 2500 THEN END |
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990 REM primality of Z by trial division, result is in A |
990 REM primality of Z by trial division, result is in A |
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1000 LET Y = 1 |
1000 LET Y = 1 |
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