48 = 1 + 23 + 4 + 5 + 6 + 7 + 8 + 9
48 = 9 + 8 + 7 + 6 + 5 + 4 + 32 × 1
48 = 0^1 − 1^6 − 2^9 + 3^8 − 4^7 + 5^3 + 6^5 + 7^4 + 8^0 + 9^2
48 = 4^2 + 4^2 + 4^2
48, smallest number with 5 representations as a sum of 2 primes: 48 = 5 + 43 = 7 + 41 = 11 + 37 = 17 + 31 = 19 + 29
48 = (1 + 1) × (1 + 1) × (11 + 1)
= 2 × (22 + 2)
= 3 × 33 − 33
= 4 + 44
= 55 − 5 − (5 + 5)/5
= 6 × 6 + 6 + 6
= 7 × 7 − 7/7
= 8 × 8 − 8 − 8
= 9 + 9 − 9 × 9 + 999/9
48 = 13^2 - 11^2 = 8^2 - 4^2 = 7^2 - 1^2
48 = ( 4^3 + 8^3 ) / ( 4 + 8 )
Number n which is the sum of 3 nonzero 4th powers
Smallest integer with ten divisors (1, 2, 3, 4, 6, 8, 12, 16, 24, 48),
Number k such that (11*10^k + 19)/3 is prime
Numbers k such that k^4 + 1 is prime.
Sum of four consecutive primes
Numbers of edges of regular polygon constructible with unmarked straightedge and compass.
Factors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Forty-eight
110000_2
1210_3
300_4
143_5
120_6
66_7
60_8
53_9
44_11
40_12
39_13
36_14
33_15
30_16
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Graduate Studies in Mathematics
