Question

a) scrieti numerele prime mai mici decat 35.
b) determinati numerele prime a,b stiind ca 3a+16b=54.
c) determinati numerele prime a,b stiind ca 7a+16b=94.
d) determinati numerele prime a,b,c stiind ca 2a+5b+6c=74.
e) determinati cel mai mare divizor comun al numerelor 12 si 18 ; 240 si 150.
f) determinati cel mai mic multiplu comun al numerelor 12 si 18; 240si 150. Va multumesc!

Answer 1

a)2,3,5,7,11,13,17,19,23,29,31,

b)3xa+16b=54
54=9x6
9=3x3
6=3x2
3x2+3x3=54
a=2
b=3

c)7x2+16x5=94
a=2
b=5

d)2x13+5x3+6x5=74

a=13
b=3
c=5

e)
12=2²x3
18=2x3²
2²x3²=4x12=48

240=2⁴x3x5
150=2x3x5²
2⁴x3x5²=1200
f)48 si1200