No. All even numbers (except 2) are composite.
Actually 2x2x5x7x11 is a prime factorization and on multiplying these numbers we get 1540. Prime factorization of a number is the prime numbers which on multiplying together give that number.
1540!! :)
No.
The express product of 1540 refers to its prime factorization, which is the product of prime numbers that multiply together to give the original number. The prime factorization of 1540 is (2^2 \times 5 \times 7 \times 11). This means that 1540 can be expressed as (2 \times 2 \times 5 \times 7 \times 11).
1540 has the prime factorization of 2 times 2 times 5 times 7 times 11
2x2x5x7x11
2 x 2 x 5 x 7 x 11 is the prime factorization of 1540.
1540
2^2x5x7x11
That's the prime factorization of 1540.
1540 = 2 x 2 x 5 x 7 x 11 All of its prime factors are not even in quantity, hence it's not a perfect square number. PS You could've used a calculator instead.
2 x 2 x 5 x 7 x 11 = 1540