137
This number is a prime.
Just showing those entries submitted by 'Rivera': (Click here to show all)
137 is the first prime that is the sum of the first K>1 primes of form 4k+3, i.e., 3+7+11+19+23+31+43 = 137. Note that 137 is not a prime of form 4k+3. [Rivera]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell