MathQuarryCalculators

Primes / Is 140 prime?

Is 140 a Prime Number?

No140 = 2^2 x 5 x 7

140 is NOT prime: 2 × 70 = 140. That makes 2 a genuine divisor of 140 beyond 1 and 140 itself. Fully broken down, 140 = 2^2 × 5 × 7, for 12 divisors total. 140 sits between primes 139 and 149, 1 below and 9 above. 140: 2, 4, 5, 7, 10 divide 140 evenly, checked against 2-12. 140 is even, digit sum 5 for 140, digital root 5 for 140. 140 has 4 primes within 10 of 140.

Factors
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
Number of factors
12
Prime?
No
Prime factorization
2^2 x 5 x 7
Even or odd
Even
Square
19600
Cube
2744000
Binary
10001100
Hexadecimal
8C
Roman numeral
CXL
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 140 →Factors of 140 →