1000
-1
-7
-13
How about: 4*5*7 = 140
-4 x 5 = -20 and -4 + 5 = 1.
396
To find four numbers that multiply together to make 250, you can start by factoring 250. The prime factorization of 250 is (2 \times 5^3). One possible combination of four numbers could be (2, 5, 5, ) and (5), since (2 \times 5 \times 5 \times 5 = 250). Other combinations are also possible, such as (1, 1, 10, ) and (25).
-1
-7
4 x 13 = 52
-28
-13
How about: 4*5*7 = 140
they multiply to a product
No you don't multiply the 4 numbers you take radius times radius
-4 x 5 = -20 and -4 + 5 = 1.
List numbers that multiply to make 28 and find their sums. Since negative times a negative is positive, list the negatives. -1, -28 = -29 -2, -14 = -15 -4, -7 = -11 Aha! -4 and -7 multiply to make 28 and add to -11; therefore, -4 and -7 are the two numbers.