MathQuarryCalculators

Primes / Is 87 prime?

Is 87 a Prime Number?

No87 = 3 x 29

87 is NOT prime: 3 × 29 = 87. That makes 3 a genuine divisor of 87 beyond 1 and 87 itself. Fully broken down, 87 = 3 × 29, for 4 divisors total. 87 sits between primes 83 and 89, 4 below and 2 above. 87: 3 divide 87 evenly, checked against 2-12. 87 is odd, digit sum 15 for 87, digital root 6 for 87. 87 has 4 primes within 10 of 87.

Factors
1, 3, 29, 87
Number of factors
4
Prime?
No
Prime factorization
3 x 29
Even or odd
Odd
Square
7569
Cube
658503
Binary
1010111
Hexadecimal
57
Roman numeral
LXXXVII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 87 →Factors of 87 →