Question

Stabiliti daca numarul 425:5^2-7^25×49^15:7^54este numar prim sau compus.Scrietu divizorii propriiai numarului :1^3+3^3+[(3^2)^6-27^4]×19^5.... va roggggg

Answer 1

425:5^2-7^25×49^15:7^54=
=425:25-7^25×7^30:7^54=
=17-7^55:7^54=
=17-7=10
10=2×5 deci nu este numar prim,este numar compus


1^3+3^3+[(3^2)^6-27^4]×19^5=
=1+27+[(3^12-3^12]×19^5=
=1+27+0×19^5=28
divizorii proprii ai  lui 28  sunt  2,4,7,14