347 is a Prime Number
347 = 12 × 3 + 4 × 56 + 78 + 9
347 = 98 + 7 + 6 + 5 × 43 + 21
347 = 0^1 − 1^9 − 2^6 + 3^8 − 4^7 + 5^5 + 6^2 + 7^0 + 8^3 + 9^4
Wagstaff number: number k such that (2^k + 1)/3 is prime.
Sexy Prime (Primes p such that p + 6 is also prime)
Prime of the form k^2 + k + 41
Weak veryprime
Toothpick sequence a(n), n = 26
Conjecturally, largest attractor in '3x+(2n+1)' problem, n = 2
347 is an irregular prime, since it divides the numerator of the Bernoulli number B280.
The ring of integers of the field Q(sqrt(-347)) has class number 5
Factors: 1, 347
Three hundred forty-seven
Representations, Binary to Hexadecimal:
101011011_2
110212_3
11123_4
2342_5
1335_6
1004_7
533_8
425_9
296_11
24b_12
209_13
1ab_14
182_15
15b_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
