To write 144 as a product of primes, you can start by factoring it. First, divide by 2: (144 \div 2 = 72); (72 \div 2 = 36); (36 \div 2 = 18); (18 \div 2 = 9); and then (9 \div 3 = 3); (3 \div 3 = 1). This gives us the prime factorization of 144 as (2^4 \times 3^2).
2^4 x 3^2
1450 as a product of primes = 2 * 5 * 5 * 29
5x5x3
20 as a product of primes = 2 * 2 * 5
5*3
2 x 2 x 2 x 2 x 3 x 3 = 144
2x2x2x2x3x3=144
2 * 33 * 72
2^4 x 3^2
2*2*2*5*!
3 x 29 = 87
33 ft.